Method of controlling operation of fuel cell system
US-10511041-B2 · Dec 17, 2019 · US
of cathode reactants at the inlet or inside the fuel cell
of cathode reactants at the inlet or inside the fuel cell · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M8/04455 |
| Official title | {of cathode reactants at the inlet or inside the fuel cell} |
| Display label | of cathode reactants at the inlet or inside the fuel cell |
| Total patents | 166 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 14 |
| 2017 | 15 |
| 2018 | 9 |
| 2019 | 17 |
| 2020 | 24 |
| 2021 | 14 |
| 2022 | 14 |
| 2023 | 19 |
| 2024 | 7 |
| 2025 | 20 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and system for eliminating reverse current decay in fuel cells
US-10483569-B2 · Nov 19, 2019 · US
Fuel cell system and method of controlling the same
US-10461348-B2 · Oct 29, 2019 · US
Fuel cell system and control method for fuel cell system
US-10454121-B2 · Oct 22, 2019 · US
Fuel Cell Watercraft
US-2019283852-A1 · Sep 19, 2019 · US
Method and system for estimating hydrogen concentration of fuel cell
US-2019288310-A1 · Sep 19, 2019 · US
Device and method for improving stack performance of fuel cell system
US-10396378-B2 · Aug 27, 2019 · US
Fuel cell watercraft
US-10364009-B2 · Jul 30, 2019 · US
Diagnostic system, fuel cell system having a diagnostic system, and method for determining cathode gas contamination
US-2019157693-A1 · May 23, 2019 · US
Method for switching off a fuel cell stack, and fuel cell system
US-10243224-B2 · Mar 26, 2019 · US
Control method and system of fuel cell system
US-2019088960-A1 · Mar 21, 2019 · US
Simplification of the electrical system of fuel cells by means of depletion of the cathode supply
US-10236523-B2 · Mar 19, 2019 · US
Coolant purification
US-10218009-B2 · Feb 26, 2019 · US
Control method and system of fuel cell system
US-10158137-B2 · Dec 18, 2018 · US
Fuel cell system and control method for fuel cell system
US-2018358639-A1 · Dec 13, 2018 · US
Method for controlling fuel cell system
US-2018339603-A1 · Nov 29, 2018 · US
Fuel cell system and control method of fuel cell system
US-2018331376-A1 · Nov 15, 2018 · US
Metal-air battery, vehicle system comprising the metal-air battery, and method of operating the metal-air battery
US-10103397-B2 · Oct 16, 2018 · US
Fuel cell system and method of controlling the same
US-10069158-B2 · Sep 4, 2018 · US
Electrochemical reactor, such as a fuel cell or an electrolyser, provided with a device for measuring a parameter of a gas specific to the operation of said reactor
US-10062915-B2 · Aug 28, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M8/04455?
- CPC H01M8/04455 is the Cooperative Patent Classification code for “of cathode reactants at the inlet or inside the fuel cell.”
- How many patents are filed under CPC H01M8/04455 (of cathode reactants at the inlet or inside the fuel cell)?
- Our database includes 166 publications tagged with this CPC code.
- Is patent activity under CPC H01M8/04455 growing?
- Publication counts under this code: 7 in 2024 vs 20 in 2025 (latest complete years).